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Br J Ophthalmol 85:939-941 doi:10.1136/bjo.85.8.939
  • Scientific correspondence

Accuracy of intraocular lens power calculation in paediatric cataract surgery

Table 1

Prediction errors for the subgroup data

Number Prediction error (dioptres) SD
Mean Median Range
Axial length <20 mm 11 2.63 2.61 0.–9.19 2.65
Axial length ⩾20 mm 41 1.07 0.71 0.07–3.93 0.98
Corneal radii <7.3 mm 12 1.60 1.36 0.24–4.00 1.3
Corneal radii ⩾7.3 mm 40 1.32 0.76 0.07–9.19 1.68
Age at surgery <36 months 12 2.56 2.29 0.24–9.19 2.5
Age at surgery ⩾36 months 40 1.06 0.68 0.07–3.93 1.02

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